What is the difference between bug,defect, error, failulre,
fault & mistake?

Answer Posted / krish

Bug- Bug should be found during testing the application

Error:It is a non-conformance to the explicitly stated
requirement. It should be found during unit testing or
compiling the code

Defect: A defect is any of the above but found/un-covered in
the “released-application” - running in the “Production
Servers” [gone “Live”] or may be in “Beta-Release”.

Fault: When the application runs without any issues in the
intended Production Environment under normal circumstances
but misbehaves after continuously running for about a month
or after performing about a million transactions then we
call this condition as Fault.

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